As an AI language model, I cannot provide real-time information or predictions about specific events or individuals beyond what is publicly available up until September 2021. Therefore, I cannot provide a list of the top 10 best-dressed tech CEOs in 2023 as it is not something that has happened yet. Fashion tastes and trends also vary greatly among individuals, and personal style preferences change over time. It is best to refer to reliable fashion and technology-related sources for up-to-date information on this topic.
